The Cleveland Browns are "alarmed" by Johnny Manziel and his partying antics in the weeks since the club drafted Johnny Football, Cleveland.com reported on Friday.

Manziel has hit Los Angeles (partying with Justin Bieber and Floyd Mayweather), Las Vegas and San Antonio (among other locales) in recent weeks. Photos of his escapades have TMZ and other site, but it was one particular image that apparently has the Browns worried.

NFL players -- at least those not in the league's drug program -- are typically only tested once for street drugs and those screenings usually take place during training camp.

Browns coach Mike Pettine told Cleveland.com, a sister site of NJ.com, that he addressed the photo with Manziel by phone and plans to have a face-to-face meeting with the quarterback.

Browns owner Jimmy Haslam reportedly told Manziel to cool with the partying after the Browns moved up in May's draft to take Manziel 22nd overall.

And beyond some negative PR, Manziel hasn't exactly shined since rookies reported to Browns camp on Wednesday, according to Cleveland.com's
Mary Kay Cabot.

Manziel regressed in practice after the first week of organized team activities, and some in the organization attributed it to too much jet-setting and not enough dedication to the playbook.

Manziel has apparently already lost ground in the team's quarterback competition.

On Monday, he told cleveland.com that although Brian Hoyer is starting out No. 1 on the depth chart, he views the competition "as open'' and vowed to give Hoyer and Manziel reps with "the same supporting cast'' to make it as fair and even as possible.

By Wednesday afternoon, after meeting with offensive coordinator Kyle Shanahan and quarterbacks coach Dowell Loggains, Pettine told a second wave of reporters in one-on-one interviews that Manziel wouldn't be getting reps with the first team offense during the early days of training camp, which begins Saturday.